<?php
$key = explode('/',$_SERVER["QUERY_STRING"]);
$ttt = $key['0'];
$tmp = file_get_contents('http://www.vdisk.cn/down/index/'.$ttt);
preg_match('|<div class=\"btn\"><a href=\"(.*)\"|iUs',$tmp,$arr);
$url = $arr['1'];
header("Location:$url");
?>